I love to use sounds on my three shemale slaves. They are given regular soundings on a daily basis for my pleasure and then they are given discipline soundings as punishments for infractions of the rules of my house. They also have their foreskins fastened back with cable ties and then the glans of their cocks are covered in Vicks Vaporub. This is an especially exciting punishment as it nearly always makes them cum involuntarily! Of course it is extremely painful as well!